人为万物之灵,然而,人的嗅觉不如狗的灵敏,人的眼睛不如鹰的锐利,人的听觉不如羚羊的敏锐,人的动作不如猫的灵活,人的速度不如马的速度快……但人却有一个相当发达的大脑,与动物消极被动地适应外界的活动不同,人的实践活动是有意识、有目的的。人们总是在一定的思想、理论、计 Man is the spirit of all things. However, people’s sense of smell is not as good as a dog’s. People’s eyes are not as good as those of eagles. People’s hearing is not as sharp as that of antelopes. People’s actions are not as flexible as cats. People’s speed is not as fast as that of horses....but People have a fairly well-developed brain. Different from the animals’ passive and passive adaptation to the outside world, people’s practical activities are conscious and purposeful. People are always in certain ideas, theories, and calculations